Lock for door knobs or handles.



A. MARION.

LOCK FOB. DOOR KNOBS 0R HANDLES.

APPLIOATION FILED JUNE 15, 190s.

912,587, Patented Feb. 16, 1909.

2 SHEETS-SHEET 1.

A. MARION.

LOCK FOR DOR KNOBS 0R HANDLES.

APBLIGATION FILED JUNE 15, 1908.

912,587, Patented Feb. 16,Y 1909.

2 SHEETS--SHBET 2.

--ms :wams Persa: co., wnsmmmm, n.'c.

UNITED sfriiiijnsrairnnr orrior..

*ARTHUR Minnen, or rrrciisnnd iiiAssAonUsETTs iiockf-Fonfnoon KNois on'HANDIJEs spec-irisation oflLtters Patent.

ratencedreb. is, 1909.

Application filed June i5, isos. serial No. 438,501.

To all whom it may concern:

Be itknown that I, YARTHUR MARioN, a

Ycitizen of -the United States, residing at -F1tchburg, in the countyor1 Worcester and LState of Massachusetts, have invented certain new anduseful Improvements in Locks for Door Knobs or Handles, of which theyfollow-ing -is a specication.

Y My invention relates to improvements in .locks for door knobs orhandles, and to that class of locks which are combined with the -knobsor handles, and are adaptedv to be used with the ordinary door latchbolt mechanism, to lock said bolt, and my invention particularly relatesto improvements upon v"the -lock for door knobs, shown land describedyin? my S. Letters Patent, No.

797,137. lIn-my said patent I use a lock "slide, which extends within alongitudinal recess or groove in one side of the handle spindle.

In my present improvements I do away `with the longitudinal recess orgroove in the 'spindle, and I use a flat lock slide, which ex :tendsupon, and-has a longitudinal movement on one sidef'of the spindle, whichis 'preferably square in cross section for a portion of its length.

- I'Yalso provide a lock mechanism for the key, of ini-provedconstruction, and with which only a key of a particular construc-vtioncan be used, but by changing the relative position of the pins ofthe lock inechan- Vism, different keys may be used without substitutinga new lock mechanism.

My invention consists in certain novel features of construction of myimprovements, as will be hereinafter Jfully described.

Referring to the drawings z-Figure l is a-'ront ed-ge view of a portionot' a door having an ordinary latch bolt mechanism applied thereto, anda-rotatable knob spindle, and knobs or handles embodying myiinproveuients combined therewith. Fig. 2 shows the knob spindle, andknobs or handles shown vin Fig.l l, detached, and the lock l`mechanismat -the right in section. Fig. 3

corresponds to Fig. 2, but shows the opposite position ofthe'l'ockslide, and the lock mechanisin withoutV the key.- Fig. 4 is a plan view-of-thelock slide, detached.-v Fig. 'shows a "--modi'ed construction ofthe'lock'slide with knob spindle, intoV v'which the end of the keylarigid'handle. Fig. @is an"l end viewrofthe isin'sertedlto turnthe-knob. Fig. 7 shows the lock mechanism shown inl Fig.- 2, dee

tached, and inl af-dilerent position. Fig. 8

`corresponds to Fig. 7,. but shows a ditferent position of the locktumbler, and of the key.

F ig.'9 is a section, on line 9,9, Fig. 3,look ing in the direction ofarrow o, same gure. Fig. lOIshows a modified construction ofthe handleshownin' Fig. 2. Fig. 1l is an inner end view of the handle shown at theleft in Fig. l0.

In the accompanying drawings, l is a de `tached portion of the edge of adoor, having a recess therein to -receive the latch bolt mechanism,which may be of the ordinary and well' known construction, having afront plate 2, secured to the edge of thedoor by screws 3, and alatchbolt 4, which is connected with and moved Vby `the turningV of arotatable knob spindle, in the ordinary and Vwell known way.

5Y and Gare plates orV disks surrounding the rotatable =knobH spindle,and secured upon the sides of the door, in the usual and well known way.

7 is a rotatable spindle, preferably made -in one piece, and having oneor .more holes therethrough at one end, which end is adapted to receivethelshank 8 of a knob -or handle S, which is rigidly attached to the`spindle 7 by a Y screw 9, which i extends through a hole in the shank8, and into one of the transverseholes in the end of the .spindle 7, inthe usual way. The spindle is preferablynon-circularin cross-section,ex-

cept at its lock mechanism end, which end is circular in cross section,as shown'at 7 except on yone side which is made flat, the

vflattened portion being longitudinalaline- The nient with one 'flatside of the spindle. end 7 has the enlarged circularv endwith an axialopening 7 therein, which is `preferably of elliptical shape, as shown inFig. 6, to receive the end of a key 10, and prevent the end fromVturning around therein, so that the turning of the key, when itpivotally attached, by a pin 14, the slotted or yoke-shaped end 15 of ahandle or engaging end 15. The lug 13 on the slide 12 extends through anelongated opening 8 in the shank 8 of the handle 8, see Fig. 2. The lockslide 12 is of such a length, that when it is moved outwardly away fromthe handle l1, as shown in Fig. 2, the end there of will be free of theshank 11 of the handle 11, so that said handle will be free to turn onthe rounded end 7 of the spindle 7. The free end of the handle l5, whenthe slide 12 is in its outward position, is preferably adapted to engagethe plate or disk 6, see Fig. 1, which acts to lock said slide l2 in itsoutward position. When the slide 12 is moved away from the handle 8, andtoward the handle 11, it will enter the square opening in the end of theshank 11 of the handle 11, and move along the flat side of the circularend 7 of the spindle 7, to lock the shank 11 of the handle l1 to thespindle 7, as shown in Fig. 3. The handle 15 may be bent downwardly, asshown in Fig. 3, with its free end in engagement with the free side ofthe knob 8, so as to lock the slide 12 in its inward position. Insteadof having the lock slide 12 with a movable handle, a-s shown, and abovedescribed, it may be made with a rigid handle 15a, as shown in Fig. 5,and in case of using a lock slide 12 with a rigid handle 15a, the shank8 of the handle 8 is preferably made, as shown in Figs. 10, and 12, withthe elongated opening 8 extending through the inner end of the shank 8',and a slot or groove 8a in the inner end of the shank, see Fig. 12. Aring 8a, see Figs. 10, and 12, may be placed on the inner end of theshank 8 of the handle 8, to close the opening 8 therein. To increase thelenoth of the shank 8, one or more rings 8a ofJ different thickness maybe used.

The lock mechanism is contained within a central opening in the handle11, and preferably consists of a bushing 16, which extends within theknob 11, and has an end 16 thereon, which is flush on its outer sidewith the outer side of the knob 11. Upon the bushing 16 is preferablyfast a sleeve 17. Within the bushing 16 extends a tumbler for the key10, made in two parts 18, and 19, and properly slotted longitudinally toreceive the key 11, which is first inserted through a longitudinalopening in the outer part of the tumbler, and then said part of thetumbler turned to allow the key to pass into the other part of thetumbler, and have `the pin 18 on the part 18 extend into thelongitudinal slot 10 in the key 10, as shown in Fig. 7. c

In connection with the bushing 16, and the sleeve 17, I may use tumblersfor the key of different length, and with one or more pins 18 indifferent positions therein, so

that different keys may be used, and a key of a special shape orconstruction will have to be used to pass through the tumbler mechanismand have its inner end extend into the opening 7 in the spindle end 7 toturn said spindle.

The operation of my improvements in lock for door knobs will be readilyunderstood by those skilled in the art.

When it is desired to have the outer handle 11, or the handle with thelock mechanism, operate the latch bolt L1, in the usual way, the lockslide 12 is moved into the position shown in Fig. 8, so that the handle11 will be connected with the spindle 7, and will turn said spindle, tooperate the latchV bolt 4 the same as the handle 8. `When it is desiredto detach the handle 11 from the spindle 7, so that the spindle 7 cannotbe turned to operate the latch bolt L1, by turning the handle 11, thelock slide 12 is moved into the position shown in Fig. 2, leaving thehandle 11 free to turn on the circular end 7 of the spindle 7. It willbe understood that the enlarged end 7 on the spindle 7, engages aninternal annular lip or flange 11, see Fig. 2, within the shank 11 ofthe handle 11, to prevent the handle 11 being drawn off from the spindle7.

"With the lock slide 12 in the position shown in Fig. 2, in order toturn the spindle 7 and operate the latch boltl, it will be necessary tohave a keylO which will fit-the lock mechanism within the handle l1. The

key 10 is inserted within the lock mechan-V ism until it passes throughthe same, and the inner end engages the non-circular opening 7 in theenlarged end 7 of the spindle 7, and the turning of the key will turnsaid spindle and operate the latch bolt 4, all as will be fullyunderstood by those skilled in the art.

It will be understood that the details fof construction of myimprovements may be varied if desired.

Having thus described my invention, Vwhat claim as new and desire tosecure by Letters Patent is 1. ln a door latch mechanism, a knob orhandle spindle having a flat surface` on one side thereof, a knob orhandle secured'on one end of said spindle, and having a longi-v tudinalvopening through one sideV of its shank, a lock slide adapted to extendupon the flat surface on the spindle, and move longitudinally thereon,with one end extending through said longitudinal opening and having ahandle or engaging end attached thereto, a second knob on the other endof the spindle, and having a lock mechanism therein for a key, said keybeing adapted to engage and rotate the spindle and move-the latch boltindependently of any movement of the knob or handle containing the lockmechanism.

2. In a door latch mechanism, a rotatable knob spindle having a flatsurface thereon, and a knob on each end of the spindle, one knob securedto the spindle to turn with it, the other knob adapted to turn on thespindle independently of the rstmentioned knob, a lock slide adapted tomove longitudinally on the flat surface of the spindle, and connect thetwo knobs so that they Will turn together, or disconnect them so thatthey will turn separately.

3. In a door knob or handle lock mechanism, the combination with aspindle of noncircular shape in cross section at one end, and ofsegmental shape in cross section at the other end, an enlarged head onsaid segmental shaped end With a non-circular opening therein, and aknob secured on the noncircular shaped end of said spindle and having anelongated opening in its shank for the engaging end of a lock slide, anda lock slide, adapted to have a longitudinal movement on said spindle,of a second handle or knob adapted to be connected With said spindle toturn the saine, through said lock slide, and a lock mechanism containedWithin said second handle or knob, adapted t0 receive a key Which willengage with the enlarged end of said spindle, to turn the spindle whenthe second mentioned handle is disconnected therefrom.

i. In a door latch mechanism, the combination with a knob or handlespindle, of non-circular shape in cross section at one end, and ofsegmental shape in cross section at the other end, and having anenlarged head on said segmental shaped end With a noncircular openingtherein, of a knob or handle loosely mounted on the segmental shaped endof said spindle, and a lock mechanism contained in said knob or handle,adapted to receive a key to turn said spindle without turning saidhandle.

5. In a door knob or handle lock mechanism, the combination with a knobor handle spindle, of a knob, secured on one end of said spindle, andhaving' an elongated opening in its shank extending to the inner end ofsaid shank, and a removable ring on the inner end of said shank, and arecess in the end of said shank, opposite said opening.

ARTHUR MARION. YWitnesses JOHN C. DEWEY, MINNA HAAS.

